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Finding the Fourth Proportional to 15,809.12, 23,710.03 and 7,039.25

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Solution

The fourth proportional to 15,809.12, 23,710.03 and 7,039.25 is: 10,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.12 : 23,710.03 = 7,039.25 : x
  2. Step 2: Convert to fraction form
    15,809.12/23,710.03 = 7,039.25/x
  3. Step 3: Cross multiply
    15,809.12x = 23,710.03 × 7,039.25
  4. Step 4: Simplify right side
    15,809.12x = 166,900,828.68
  5. Step 5: Solve for x
    x = 166,900,828.68/15,809.12
  6. Step 6: Final answer
    x = 10,557.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.